The Cost page in Stax enables you to explore your cost in more detail, tracking against budgets and seeing trends over time.

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Usage Cost

Use the Cost page in Stax to explore your AWS spend further. You can see your daily, weekly or monthly spend broken down by usage code, service, account or region and see your trends and change over time. If you've added budgets, you can easily see how you're tracking against them.

If you'd like to narrow down your exploration to one part of the business, use the Global Filters to filter Stax down to a single account, region, cost center, project, etc.

Stax Global Filter

Usage Cost

The default AWS cost that is reported in Stax is based what you actually used, which might not be the same as what you paid for.

AWS has lots of ways to pay for resources, which can make it hard to understand what your team is actually using. Tracking consumption, or usage cost, is useful for managing spend because that’s the number that you can really influence.

Stax Cost Usage Graph

The default cost you see in Stax removes some one-off charges and financial constructs like AWS Support, Tax, Reservations and Credits.

Financial Cost

To match Stax to your AWS bill, toggle on the Financial Filters

Stax Cost Financial Mode Toggle

Financial Filters will include the following in your view of AWS Cost in Stax

  • One-off charges, like AWS Support and Tax. While this is a cost that will be on your AWS bill and you will have to pay for, it’s not related to what you use or provision. Excluding these costs in your day to day view of AWS spend, removes noise that you don’t need to hear.
  • Reservation charges and Savings Plans. Similarly, Reservations of Instances or Capacity in AWS as well as Savings Plans can significantly reduce your bill, but are charged in a way that creates noise in your day to day view of cost. You might pay all upfront, in which case you’ll see a big cost on the day you’re charged, and nothing for the rest of the year. Or, you might be getting charged monthly, in which case the first of the month has a big cost spike, and the rest of the month is relatively flat. Additionally, in lots of businesses, only one person makes the decision of what to reserve and the people who are actually using AWS can’t influence this dollar amount. The dollar amount that you can influence is your on-demand cost, which is what you’ll see in your default view of Stax. As Reserved Instances get used during the month, Stax allocates them to usage for the AWS service in question, so your RI – EC2 cost will go down over the month, and your EC2 cost (reported as Usage) will go up.